 
     (is-assert-error?
      (t/thing->def
-      (t/thing->group t))))
+      (t/thing->group t)))))
 
+(deftest thing->namespace-tests
   (testing "Testing thing->namespace"
     (is-assert-error?
      (t/thing->namespace


    (is-assert-error?
     (t/thing->platform
      (t/thing->group t))))

  (testing "Testing thing->version"
    (is-assert-error?
     (t/thing->version


    (is-assert-error?
     (t/thing->version
      (t/thing->group t)))))

(deftest thing->artifact-tests
  (testing "Testing thing->artifact"
    (is-assert-error?
     (t/thing->artifact
